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Finding the Fourth Proportional to 536.18, 802.45 and 414.99

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Solution

The fourth proportional to 536.18, 802.45 and 414.99 is: 621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.18 : 802.45 = 414.99 : x
  2. Step 2: Convert to fraction form
    536.18/802.45 = 414.99/x
  3. Step 3: Cross multiply
    536.18x = 802.45 × 414.99
  4. Step 4: Simplify right side
    536.18x = 333,002.64
  5. Step 5: Solve for x
    x = 333,002.64/536.18
  6. Step 6: Final answer
    x = 621.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.